Step 2Open 'er up!
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Take a knife (I'm using a standard knife I have from when I was in the Boy Scouts) and try to find the "seam", or the place where the plastic is fused together on the drive. Usually found along the sides. Once you've found it, place the sharpest and pointiest knife (or other thing, such as a letter opener) along the seam and press diagonally through the plastic. Eventually you should hear a cracking sound as your blade penetrates the plastic. With the point inside the plastic, work the knife back and forth (slowly and carefully!) along the side of the drive. Work it all the way around until all the plastic either comes off on its own or is easy to snap off. Mine snapped off after going only about half way.